Flight-Test Results of Propulsion-Only Emergency Control System on MD-11 Airplane

Burken, John J.; Burcham, Frank W.

doi:10.2514/2.4143

Cited by 30 publications

(26 citation statements)

References 1 publication

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“…PCA is a specific instance of a multi-model approach where the fault model is identical to the nominal one, but in which all control surfaces are free floating. In 1995, a demonstration was made during which a MD-11 ( Figure 2.11) and a F-15 recovered from a complete hydraulic failure and landed successfully under propulsion-only control [18]. PCA is a useful and important idea and solves a very practical problem.…”

Section: Propulsion Controlled Aircraft (Pca)mentioning

confidence: 99%

Fault Tolerant Flight Control - A Survey

Verhaegen

Kanev

Hallouzi³

et al. 2010

Lecture Notes in Control and Information Sciences

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Section: Propulsion Controlled Aircraft (Pca)mentioning

confidence: 99%

Fault Tolerant Flight Control - A Survey

Verhaegen

Kanev

Hallouzi³

et al. 2010

Lecture Notes in Control and Information Sciences

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“…This mishap and the pilots' actions led to extensive research in the use of propulsion control to replace or augment the control authority of the baseline aircraft in the event of failures. [4][5][6][7][8][9][10][11][12][13][14][15] The controller presented in this paper is unique in that it is intended to reduce surface activity during trim and low-frequency yaw inputs for HWB aircraft. The controller was designed as an extension to the baseline control laws to reduce the verification and validation required.…”

Section: Introductionmentioning

confidence: 99%

Engine Yaw Augmentation for Hybrid-Wing-Body Aircraft via Optimal Control Allocation Techniques

Taylor

Yoo

2011

AIAA Guidance, Navigation, and Control Conference

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Asymmetric engine thrust was implemented in a hybrid-wing-body non-linear simulation to reduce the amount of aerodynamic surface deflection required for yaw stability and control. Hybrid-wing-body aircraft are especially susceptible to yaw surface deflection due to their decreased bare airframe yaw stability resulting from the lack of a large vertical tail aft of the center of gravity. Reduced surface deflection, especially for trim during cruise flight, could reduce the fuel consumption of future aircraft. Designed as an add-on, optimal control allocation techniques were used to create a control law that tracks total thrust and yaw moment commands with an emphasis on not degrading the baseline system. Implementation of engine yaw augmentation is shown and feasibility is demonstrated in

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“…For example, the use of engine thrust for emergency flight control was investigated by NASA, and the simulation results and flight studies for several aircrafts have been reported. 1,2) To execute a safe emergency landing with the remaining control devices, it is necessary that the distressed aircraft has tolerable handling characteristics. There have been numerous studies about aircraft handling qualities that have focused on usual aircrafts.…”

Section: Introductionmentioning

confidence: 99%

Pilot-in-the-Loop Analysis of Aileron Operation and Flight Simulator Experiments

Fujinaga

Tokutake

Miura

2007

Trans. Japan Soc. Aero. S Sci.

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Lateral-directional piloted simulation experiments were conducted in order to analyze pilot responses when the pilot controls an aircraft with only the ailerons after rudder failure. The experiments were carried out using a fixed-base flight simulator and four pilots. Six aircraft configurations, made by changing the stability derivatives, were tested, and pilot models were identified using the least-squares method. An analysis of the closed-loop shows that the closed-loop gain and stabilities correlate with the tracking error of the compensation task. Additionally, from the results of analysis, an evaluation function using pilot-in-the-loop with a fixed pilot model was developed. This function was able to predict the compensational error analytically from the airplane dynamics.

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Flight-Test Results of Propulsion-Only Emergency Control System on MD-11 Airplane

Cited by 30 publications

References 1 publication

Fault Tolerant Flight Control - A Survey

Fault Tolerant Flight Control - A Survey

Engine Yaw Augmentation for Hybrid-Wing-Body Aircraft via Optimal Control Allocation Techniques

Pilot-in-the-Loop Analysis of Aileron Operation and Flight Simulator Experiments

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